Technical SEO + UX
Core Web Vitals Calculator
Enter your LCP, INP, and CLS values to get a real-time Core Web Vitals assessment with prioritized fixes for each metric.
✗ Failing Core Web Vitals
0 of 3 metrics in the "Good" range. Google requires all three to pass.
LCP
Largest Contentful Paint
- →Optimize and preload the hero image (WebP/AVIF)
- →Reduce server response time (TTFB) with caching/CDN
INP
Interaction to Next Paint
- →Break up long JavaScript tasks (>50ms)
- →Defer non-critical third-party scripts
CLS
Cumulative Layout Shift
- →Set explicit width/height on images and video
- →Reserve space for ads and embeds
Thresholds per Google's web.dev (2024+): INP replaced FID as a Core Web Vital in March 2024.
How It Works
Using the Core Web Vitals Calculator
The Core Web Vitals Calculator runs directly against a live URL or your own pasted content — no signup, no install. Results come back in seconds as a prioritized, plain-English list rather than a raw score, so you know exactly what to fix first and why it matters. It's a focused, single-purpose check, built to answer this one question quickly rather than replace a full technical audit.
- 1Paste in your URL, text, or data — no signup required.
- 2The tool runs its analysis and returns results in seconds.
- 3Review the flagged issues, ranked by severity, with a plain-English explanation of each.
- 4Fix the highest-priority items first, then re-run to confirm.
Technical SEO is the foundation everything else sits on: if a page can't be crawled efficiently, rendered correctly, or loaded fast enough, no amount of content or backlinks fixes that. Most technical issues are invisible until you specifically look for them.
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